131045325045445 has 32 divisors (see below), whose sum is σ = 166879087278048. Its totient is φ = 98447691890688.

The previous prime is 131045325045359. The next prime is 131045325045457. The reversal of 131045325045445 is 544540523540131.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 4298100190596 + 126747224854849 = 2073186^2 + 11258207^2 .

It is a cyclic number.

It is not a de Polignac number, because 131045325045445 - 2⁷ = 131045325045317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131045325045395 and 131045325045404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104149117 + ... + 105399853.

It is an arithmetic number, because the mean of its divisors is an integer number (5214971477439).

Almost surely, 2^{131045325045445} is an apocalyptic number.

It is an amenable number.

131045325045445 is a deficient number, since it is larger than the sum of its proper divisors (35833762232603).

131045325045445 is a wasteful number, since it uses less digits than its factorization.

131045325045445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253529.

The product of its (nonzero) digits is 2880000, while the sum is 46.

Adding to 131045325045445 its reverse (544540523540131), we get a palindrome (675585848585576).

The spelling of 131045325045445 in words is "one hundred thirty-one trillion, forty-five billion, three hundred twenty-five million, forty-five thousand, four hundred forty-five".